* Astronomy

Orbital elements:
2009 SJ18                                                Earth MOID = 0.0451 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M  87.46264              (2000.0)            P               Q
n   1.06951762     Peri.  172.92712     -0.99347103     -0.11406651
a   0.9469871      Node     0.53594     +0.09107304     -0.80370772
e   0.1090484      Incl.   12.57748     +0.06870967     -0.58398864
P   0.92           H   24.5           G   0.15           U   9

MPEC 2009 - S69

The 33 - 73 metre wide asteroid 2009 SJ18 will make a close pass (23.6 Lunar Distances, 0.0607 AU), travelling at 6.73 km/s, to the Earth-Moon system on the 28th September, 2009.

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).